Byung Chul Kang

We report the case of a 29-year-old female patient with a diffuse type of serous cystadenoma involving the entire pancreas except for part of the head, which was replaced by islet cell tumour. Ultrasound and CT showed multiple cysts in the entire pancreas and a solid mass with calcification in the head. MRI characterized the fluid content of the cysts and the extent of disease.

Superficial bladder cancers could be differentiated from invasive tumors using the stalk or inchworm sign on MRI.

PURPOSE: To determine the efficacy and clinical outcome of uterine arterial embolization as a new approach to the management of uterine leiomyomas MATERIALS AND METHODS: Uterine arterial embolization was performed in 21 patients aged 26-62(mean, 42) years. Twenty of these had menorrhagia, dysmenorrhea, and mass-related symptoms (low abdorminal discomfort, backache, urinary frequency, etc.) and one was diagnesed incidentally. Bilateral uterine arteries were selected individually and polyvinyl alc

BACKGROUND: Coronavirus disease 2019 (COVID-19) changed the practice of medicine, and various anti-contagion restrictions were implemented worldwide. OBJECTIVES: This study aimed to evaluate the annual trend in the incidence of otologic diseases during the COVID-19 pandemic and determine the influence of social restrictions on these diseases. MATERIALS AND METHODS: We retrospectively reviewed the number of patients treated for otologic diseases, particularly those associated with infectious path

본 논문에서는 IEEE 802.11 MAC의 DCF 백오프 조작이 무선랜 시스템에 미치는 영향을 분석할 수 있는 백오프 조작에 대한 수학적 모델을 제시한다. 제시한 모델을 통해 백오프 조작이 무선랜 시스템과 노드에 미치는 영향을 분석한다. 실험을 통해 백오프 조작 노드는 표준 노드들의 충돌확률을 증가시키는 것을 확인한다. 또한 백오프 조작 노드는 표준 노드들에게는 채널에 실제보다 더 많은 노드들이 존재하는 것처럼 채널 추정오류를 유발하며 더 많은 채널 자원을 점유할 수 있음을 보여준다. 본 논문에서 제시한 모델 및 분석은 무선랜 DCF에 관한 연구에 기여할 것이다.

Introduction Muscle health, including muscle volume, is an independent risk factor for physical disability and metabolic disorders. Although low muscle mass has been associated with hearing loss, the association between computed tomography (CT)-derived muscle quality and hearing has not been explored. Methods This cross-sectional study examined associations between abdominal body composition and hearing thresholds in 7,774 adults (4,537 men and 3,237 women) aged ≥40 years undergoing routine heal

Purpose: We wanted to compare CT urography (CTU) with using multi-detector row CT (MDCT) and intravenous urography (IVU) for diagnosing the causes of hematuria. Materials and Methods: From January 2003 to March 2004, IVU and CTU were obtained in 48 patients. We evaluated the causes of hematuria in 34 of 48 patients. The IVU images were obtained by the conventional method. The CTU images were routinely obtained before intravenous contrast injection, and at 2 and 5 minutes after intravenous contra

Elasticity (≤14.8 kPa) showed a significant association with the combination of (borderline) TCMR categories, whereas dispersion (>15.0 m/s/kHz) was significantly associated with the combination of non-TCMR categories in renal allografts.

Purpose: To develop a VX-II carcinoma model in the rabbit uterus and to describe the MR imaging findings of an experimentally induced VX-II uterine carcinoma along with the histopathologic findings. Materials and Methods: 13 New Zealand rabbits were included in this study. Two pieces of tissue suspension (1 2) of VX-II carcinoma were loaded in an 18 gauge disposable needle and the tissue embedded in the wall of each horn of the rabbits’uterus. We obtained the MR images at 2 weeks in group A (n=5

The solitary fibrous tumor, of rare mesodermal origins, primarily affects the pleura and occasionally occursin the peritoneum and at nonserosal sites. Although this is a pathologically well established entity, it isfrequently confused radiologically and pathologically with other tumors of mesenchymal origin. We report one case of a solitary fibrous tumor in the retroperitoneum. The 15X10X7cm mass, lacated in the left perirenal space just above the left kidney, had relatively homogeneous consiste

PURPOSE: To assess the diagnostic efficacy of magnetic resonance (MR) imaging in the detection of a vertebralartery injury occurring from major cervical spine trauma. MATERIALS AND METHODS: Conventional MR findings of 63patients and 63 control subjects were compared to detect a possible change in the vertebral arteries resulted fromtrauma. Plain films, CT and clinical records were also reviewed to correlate the degree of cervical spine injurywith vascular change. RESULTS: Nine cases of absent fl